Device for emergency opening and closing of double-wing horizontal rotating steel bridge

Abstract

The utility model relates to the technical field of bridge traction, and particularly discloses a device for emergency opening and closing of a double-wing horizontal rotating steel bridge, which comprises a tractor positioned below the bridge and connected with one end of the bridge, a connecting mechanism for connecting the tractor and the bridge, and a counterweight component matched with the tractor and positioned below the bridge, the tractor moves in the transverse bridge direction. According to the utility model, the frame can be driven to lift through the lifting mechanism, so that the frame can effectively bear the weight of the counter weight, the traction force of the tractor is further increased, and effective traction of a large bridge is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge traction, and more specifically to a device for emergency opening and closing of a double-wing horizontal rotating steel bridge. Background Art

[0002] In the prior art, in order to meet the needs of land and water transportation, a slewing body is often used to realize the rotation drive of the bridge, so that the bridge can be closed and connected to realize the passage of trains when the traffic is needed; after the passage is completed, the bridge is opened to the berth through the same driving method to ensure the normal passage of the canal waterway;

[0003] However, when an abnormality occurs in the slewing drive, or when the wind speed seriously exceeds the normal operating limit after the bridge is opened to traffic, the slewing drive will be unable to control the rotation of the bridge. At this time, emergency measures will be taken to open the bridge to ensure navigation; however, the prior art lacks an emergency device that can be applied to large bridges to achieve traction and rotation of the bridge. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device for emergency opening and closing of a double-wing horizontal rotating steel bridge;

[0005] The solution adopted by the utility model to solve the technical problem is:

[0006] A device for emergency opening and closing of a double-wing horizontal rotating steel bridge comprises a tractor located below the bridge and connected to one end of the bridge, a connecting mechanism for connecting the tractor and the bridge, and a counterweight assembly used in conjunction with the tractor and located below the bridge; the tractor moves in the transverse direction of the bridge.

[0007] When in use, the tractor will take on the counterweight assembly to increase the weight of the tractor, and then move linearly along the transverse direction of the bridge around the rear tractor to rotate the bridge connected to the tractor around the revolving body, thereby achieving traction of the bridge when the revolving body drive cannot normally control the rotation of the bridge, and realizing emergency opening and closing; by adding the counterweight assembly, the tractor can provide sufficient traction to meet the needs of large tractors, so as to achieve the purpose of traction-driven bridge rotation.

[0008] In some possible implementations,

[0009] The counterweight assembly comprises two groups of brackets symmetrically arranged along the transverse direction of the bridge and located below the bridge, and counterweight blocks installed on the two groups of brackets; the tractor is located between the two groups of brackets.

[0010] In some possible implementations,

[0011] The tractor comprises a frame, a steering assembly rotatably mounted at the bottom of the frame and cooperating with the frame in a vertical direction, a lifting mechanism hinged to the steering assembly and used to support a counterweight, a driving mechanism connected to the lifting mechanism and driving the frame to move in a transverse direction, and a cab mounted at the bottom of the frame and located at the front end of the frame.

[0012] In some possible implementations,

[0013] The driving mechanism comprises two groups of driving devices symmetrically arranged along the longitudinal direction of the bridge.

[0014] In some possible implementations,

[0015] Each set of the driving devices comprises two sets of driving members symmetrically arranged in the transverse direction of the bridge;

[0016] The driving member includes a wheel axle arranged along the longitudinal direction of the bridge, two sets of driving wheels respectively mounted on the wheel axle, and a hydraulic driving system used in conjunction with the wheel axle; the lifting mechanism is mounted on the outer side of the wheel axle and rotates in conjunction with the wheel axle.

[0017] In some possible implementations, in order to drive the frame to rise and fall vertically through the lifting mechanism, the counterweight block is received to increase the traction force of the tractor;

[0018] The lifting mechanism includes a hinged plate sleeved outside the wheel axle and coaxially arranged with the wheel axle, a telescopic control component whose telescopic end is hinged to the hinged plate and the other end is hinged to the steering component; the end of the hinged plate away from the telescopic control component is hinged to the steering component.

[0019] In some possible implementations, in order to effectively enable the tractor to have a steering function;

[0020] The steering assembly includes a slewing bearing that rotates with the frame, a connecting arm connected to the bottom of the slewing bearing and hinged to the hinge plate at the other end, and a steering drive system installed on the slewing bearing and used to control the rotation of the slewing bearing; one end of the telescopic control assembly is hinged to the slewing bearing.

[0021] In some possible implementations, in order to effectively ensure that the entire tractor has good stability;

[0022] The hinge point of the telescopic control assembly and the slewing bearing, the vertical axis of the slewing bearing, and the axis of the wheel axle along the bridge direction are on the same vertical plane;

[0023] The hinge point between the telescopic control assembly and the hinge plate, the hinge point between the connecting arm and the hinge plate, and the axis of the wheel axle are on the same plane.

[0024] In some possible implementations,

[0025] A limiting block for limiting the movement of the counterweight block along the transverse bridge direction is arranged on the vehicle frame along the transverse bridge direction.

[0026] In some possible implementations,

[0027] The connecting mechanism comprises a traction hook installed at the rear of the frame, a hook installed at the bottom of the bridge and used in conjunction with the connecting frame, and a traction rope used to connect the traction hook and the hook.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] The utility model can drive the vehicle frame to rise and fall through the lifting mechanism, so that the vehicle frame can effectively bear the weight of the counterweight, thereby increasing the traction force of the tractor and realizing effective traction for large bridges;

[0030] The utility model realizes steering by setting a steering assembly to drive a driving member; a hydraulic motor is used as a power source to drive the entire tractor to move, and its travel speed is slow; through the corresponding arrangement of the driving member and the hydraulic motor, four-wheel drive synchronization is effectively achieved and driving force is evenly provided, so that the traction force provided to the bridge is greater;

[0031] The utility model has the advantages of simple structure and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the utility model;

[0033] Figure 2 It is a structural schematic diagram of the tractor in the utility model;

[0034] Figure 3 It is a schematic diagram of the position relationship between the counterweight assembly and the tractor when the telescopic cylinder is in the "0" position in a specific embodiment of the utility model;

[0035] Figure 4 This is a schematic diagram of the position relationship between the drive mechanism, slewing bearing, connecting arm, and lifting mechanism when the telescopic cylinder is in the "0" position;

[0036] Figure 5 It is a schematic diagram of the position relationship between the counterweight assembly and the tractor when the telescopic cylinder is in the jacking position in a specific embodiment of the utility model;

[0037] Figure 6 It is a schematic diagram of the position relationship of the driving mechanism, slewing bearing, connecting arm and lifting mechanism when the telescopic cylinder is in the jacking position;

[0038] Figure 7 It is a schematic diagram of the position relationship between the counterweight assembly and the tractor when the telescopic cylinder is in the retracted position in a specific embodiment of the utility model;

[0039] Figure 8 It is a schematic diagram of the position relationship of the drive mechanism, slewing bearing, connecting arm and lifting mechanism when the telescopic cylinder is in the retracted position;

[0040] Fig. 9 A schematic diagram of the connection relationship between the utility model and the bridge;

[0041] Fig.10 It is a structural schematic diagram of the vehicle frame, slewing bearing, connecting arm and steering drive system in the utility model;

[0042] Among them: 1-tractor, 11-frame, 111-limit block, 12-steering assembly, 121-slewing bearing, 122-connecting arm, 123-steering drive system, 1231-driving cylinder, 1232-connecting rod one, 1233-connecting rod two, 13-lifting mechanism, 131-hinge plate, 132-telescopic control assembly, 14-driving mechanism, 141-axle, 142-driving wheel, 15-cab, 2-connecting mechanism, 21-traction hook, 22-hook, 23-traction rope, 3-counterweight assembly, 31-bracket, 32-counterweight block, 4-bridge. DETAILED DESCRIPTION

[0043] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. The "first", "second" and similar words mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "one" and other similar words do not indicate a quantity limit, but indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can indicate: A exists alone, A and B exist at the same time, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more. For example, multiple positioning columns refer to two or more positioning columns. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0044] The utility model is described in detail below.

[0045] like Figure 1-Figure 10 As shown:

[0046] A device for emergency opening and closing of a double-wing horizontal rotating steel bridge 4 includes a tractor 1 located below the bridge 4 and connected to one end of the bridge 4, a connecting mechanism 2 for connecting the tractor 1 and the bridge 4, and a counterweight assembly 3 used in conjunction with the tractor 1 and located below the bridge 4; the tractor 1 moves along the transverse direction of the bridge.

[0047] When in use, the tractor 1 will take on the counterweight assembly 3 to increase the weight of the tractor 1, and then the tractor 1 will make a linear motion along the transverse direction of the bridge to rotate the bridge 4 connected to the tractor 1 around the rotating body, thereby achieving traction of the bridge 4 when the rotating body drive cannot normally control the rotation of the bridge 4, thereby realizing emergency opening and closing; by adding the counterweight assembly 3, the tractor 1 can provide sufficient traction force to meet the needs of large tractors 1, so as to achieve the purpose of traction driving the bridge 4 to rotate.

[0048] In some possible implementations, in order to effectively achieve the cooperation between the counterweight assembly 3 and the tractor 1, thereby effectively increasing the traction force of the tractor 1;

[0049] The counterweight assembly 3 includes two sets of brackets 31 symmetrically arranged along the transverse direction of the bridge and located below the bridge 4, and counterweight blocks 32 installed on the two sets of brackets 31; the tractor 1 is located between the two sets of brackets 31;

[0050] The tractor 1 is located in the transverse bridge channel formed by the two sets of brackets 31, and the counterweight 32 is located above the tractor 1 and supported by the two sets of brackets 31; when the tractor 1 is not used for traction, the tractor 1 does not bear the weight of the counterweight 32; only when traction is required, the tractor 1 bears the weight of the counterweight 32, so that the tractor 1 has a larger traction force to drive the bridge 4 to rotate around the rotating body to achieve opening and closing;

[0051] In order to facilitate placing the counterweight 32 on the bracket 31, a hook is also provided on the counterweight 32;

[0052] In some possible implementations, in order to enable the tractor 1 to have greater traction force, thereby achieving traction for a large bridge 4;

[0053] The tractor 1 comprises a frame 11, a steering assembly 12 rotatably mounted at the bottom of the frame 11 and rotatably matched with the frame 11 in a vertical direction, a lifting mechanism 13 hinged to the steering assembly 12 and used to support a counterweight 32, a driving mechanism 14 connected to the lifting mechanism 13 and driving the frame to move in a transverse direction, and a cab 15 mounted at the bottom of the frame 11 and located at the front end of the frame 11; the cab 15 is arranged at the bottom of the frame 11 to avoid interference between the cab 15 and other components such as the counterweight 32, thereby affecting normal driving;

[0054] The driving mechanism 14 includes two sets of driving devices symmetrically arranged along the longitudinal direction of the bridge;

[0055] Each set of the driving devices comprises two sets of driving members symmetrically arranged in the transverse direction of the bridge;

[0056] The driving member includes a wheel axle 141 arranged along the bridge direction, two groups of driving wheels 142 respectively mounted on the wheel axle 141, and a hydraulic driving system used in conjunction with the wheel axle 141; the lifting mechanism 13 is mounted on the outer side of the wheel axle 141 and is rotatably coordinated with the wheel axle 141; that is, the wheel axles 141 are four groups, all arranged in parallel, and the axes of the two groups of wheel axles 141 in each group of driving members are coaxial; two groups of driving wheels 142 are arranged on each group of wheel axles 141; the hydraulic driving system drives the wheel axle 141 to rotate, thereby realizing the rotation of the driving wheels 142, and further realizing the driving of the entire tractor 1;

[0057] The hydraulic drive system is a hydraulic motor, and the four sets of drive parts correspond to the four sets of hydraulic motors, realizing the four-wheel drive function, realizing the synchronous and uniform provision of driving force for the four-wheel drive, and the driving speed of the entire tractor 1 is low; at the same time, the hydraulic motor and the proportional valve are used in combination to realize stepless speed change, so that the traction force provided to the bridge 4 is greater;

[0058] Before towing the bridge 4, the tractor 1 will be located in the transverse channel of the bridge, and the frame 11 will be controlled by the lifting mechanism 13 to move toward the side close to the counterweight 32, so as to lift the counterweight 32, so that the counterweight 32 is no longer in contact with the bracket 31, and the bracket 31 no longer supports the counterweight 32; the weight of the counterweight 32 will act on the tractor 1; then the tractor 1 will be controlled to move along the transverse direction of the bridge, so that the bridge 4 connected to the tractor 1 rotates around the rotating body, thereby realizing opening and closing.

[0059] In some possible implementations, in order to drive the frame 11 to rise and fall vertically through the lifting mechanism 13, the counterweight block 32 is received to increase the traction force of the tractor 1;

[0060] The lifting mechanism 13 includes a hinge plate 131 which is sleeved on the outside of the wheel axle 141 and is coaxially arranged with the wheel axle 141, and a telescopic control component whose telescopic end is hinged to the hinge plate 131 and whose other end is hinged to the steering component 12; one end of the hinge plate 131 away from the telescopic control component is hinged to the steering component 12;

[0061] In order to effectively realize the articulation cooperation between the components, specifically, a hinge shaft is provided at the bottom of the slewing bearing 121, which is articulated with the telescopic control component 132 and arranged along the bridge direction; a hinge shaft is provided on the articulated plate 131, which is articulated with the connecting arm 122 and arranged along the bridge direction; and a transfer shaft is provided on the articulated plate 131, which is articulated with the telescopic control component 132 and arranged along the bridge direction;

[0062] Further, the telescopic control component is a telescopic cylinder;

[0063] In some possible implementations, in order to make the tractor 1 have good steering performance;

[0064] The steering assembly 12 includes a slewing bearing 121 rotatably matched with the vehicle frame 11, a connecting arm 122 connected to the bottom of the slewing bearing 121 and hinged at the other end to the hinge plate 131, and a steering drive system 123 installed on the slewing bearing 121 and used to control the rotation of the slewing bearing 121; one end of the telescopic control assembly 132 is hinged to the slewing bearing 121;

[0065] The steering drive system 123 is mainly used to control the slewing bearing 121 to rotate around its axial direction, thereby driving the connecting arm 122 to rotate, so that the wheel shaft 141 connected to the connecting arm 122, the hinge plate 131, the telescopic control assembly, and the driving wheel 142 connected to the wheel shaft 141 can all rotate, thereby achieving steering;

[0066] like Fig.10 As shown, the steering drive system 123 includes a driving cylinder 1231 with one end hinged to the frame 11, a connecting rod mechanism with one end hinged to the frame 11 and located above the slewing bearing 121, and the other end of the connecting rod mechanism is hinged to the slewing bearing 121; the telescopic end of the driving cylinder 1231 is hinged to the connecting rod mechanism;

[0067] The connecting rod mechanism includes a connecting rod 1232 hinged at one end to the vehicle frame 11, and a connecting rod 2 1233 hinged at the other end of the connecting rod 1232; the other end of the connecting rod 2 1233 is hinged to the slewing bearing 121; the hinge point between the connecting rod 2 1233 and the slewing bearing 121 is not concentric with the slewing bearing 121; the telescopic end of the driving oil cylinder 1231 is hinged to the connecting rod 1 1232;

[0068] Each set of driving members corresponds to a set of steering assemblies 12; when turning, the four sets of steering assemblies 12 move synchronously to drive the corresponding driving members to realize the steering operation;

[0069] The hinge point between the telescopic control assembly and the slewing bearing 121, the vertical axis of the slewing bearing 121, and the axis of the wheel axle 141 along the bridge direction are on the same vertical plane;

[0070] The hinge point between the telescopic control assembly and the hinge plate 131 , the hinge point between the connecting arm 122 and the hinge plate 131 , and the axis of the wheel shaft 141 are on the same plane.

[0071] In the initial state, the initial state described here is when the top surface of the frame 11 just contacts the bottom of the counterweight 32, and the hinge point between the telescopic control assembly and the hinge plate 131, the hinge point between the connecting arm 122 and the hinge plate 131, and the hinge point between the telescopic control assembly 132 and the slewing bearing 121 are sequentially connected to form an equilateral triangle.

[0072] In some possible implementations, in order to effectively prevent the counterweight 32 from moving in the transverse direction and sliding off the frame 11 due to inertia during braking;

[0073] A limit block 111 is provided on the frame 11 along the transverse direction to limit the movement of the counterweight block 32 along the transverse direction;

[0074] Specifically, Figure 1 As shown, when there are three groups of counterweight blocks 32, there are four groups of counterweight blocks 32, and they are arranged along the bridge direction; a groove for installing the counterweight blocks 32 is formed between two adjacent groups of counterweight blocks 32;

[0075] In some possible implementations,

[0076] The connecting mechanism 2 includes a traction hook 21 installed at the rear of the frame 11 , a hook 22 installed at the bottom of the bridge 4 and used in conjunction with the connecting frame, and a traction rope 23 used to connect the traction hook 21 and the hook 22 .

[0077] Furthermore, the traction rope 23 is made of nylon.

[0078] It should be noted that:

[0079] 1. Under normal circumstances, the tractor 1 is parked in a parking area. Preferably, the parking area is set within the turning radius of the rotary bridge so that the tractor 1 can be driven to the working position as quickly as possible in an emergency.

[0080] When the tractor 1 is parked, it does not bear the weight of the counterweight 32 to protect the tractor 1 and the driving wheel 142. The counterweight 32 is supported by the bracket 31. When the tractor 1 is not in use, it will be parked directly under the counterweight 32.

[0081] 2. When the bridge 4 needs to be towed, the frame 11 is lifted by the lifting mechanism 13. At this time, the telescopic cylinder is in the lifting state. Figure 5 , Figure 6 As shown, the counterweight 32 is supported on the frame 11, and the gap formed between the counterweight 32 and the bracket 31 after the counterweight 32 is lifted is greater than 50 mm;

[0082] The tractor 1 can then leave the transverse bridge passage. When the tractor 1 carrying the counterweight 32 leaves the transverse bridge passage, the telescopic cylinder returns to the position as shown in FIG. Figure 7 , Figure 8In the "0" position shown, the tractor 1 can start to drive onto the working lane;

[0083] After reaching the traction point of the bridge 4, the traction rope 23 is manually operated to connect with the hook 22, and the traction vehicle 1 can be started to start traction;

[0084] During the traction process, the traction speed is as low as possible, and the swivel brake of the bridge 4 is in a clamped state to prevent the bridge body from rotating by itself due to inertia and exceeding the driving speed of the tractor 1;

[0085] The traction range is about 90 degrees along the arc road with the center of the bridge's 4 rotating bodies as the center; when the bridge body is towed to the locking position, the entire traction process is completed; the bridge body is locked by the bridge end latch; at this time, the tractor 1 is directly under the bridge deck and needs to unlock the hanging rope and carry the counterweight back to the parking area.

[0086] 3. When the tractor 1 reaches the transverse bridge channel, the counterweight 32 is lifted up along with the frame 11 by the telescopic cylinder, and the tractor 1 then drives into the transverse bridge channel;

[0087] After reaching the position, the telescopic cylinder is retracted and Figure 5 and Figure 6 The lifting state shown is converted to Figure 3 and Figure 4 The "0" position shown in the figure allows the counterweight 32 to return to the bracket 31 and then continue to retract to Figure 7 and Figure 8 In the retracted position shown, the telescopic cylinder allows the tractor 1 to be unloaded, thereby completing the entire traction process.

[0088] 4. When traction in the opposite direction is required, the bridge 4 is towed back from the berthing state to the connected state to meet the conditions for traffic; the operation of the tractor 1 is similar.

[0089] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A device for emergency opening and closing of a double-wing horizontally rotating steel bridge, characterized in that: It includes a tractor located under the bridge and connected to one end of the bridge, a connecting mechanism for connecting the tractor and the bridge, and a counterweight assembly used in conjunction with the tractor and located under the bridge; the tractor moves in the transverse direction of the bridge; the tractor includes a frame, a steering assembly rotatably mounted at the bottom of the frame and cooperating with the frame in a vertical direction, a lifting mechanism hinged to the steering assembly and used to support the counterweight, a driving mechanism connected to the lifting mechanism and driving the frame to move in the transverse direction of the bridge, and a cab mounted at the bottom of the frame and located at the front end of the frame.

2. The device for emergency opening and closing of a double-wing horizontally rotating steel bridge according to claim 1 is characterized in that: The counterweight assembly comprises two groups of brackets symmetrically arranged along the transverse direction of the bridge and located below the bridge, and counterweight blocks installed on the two groups of brackets; the tractor is located between the two groups of brackets.

3. The device for emergency opening and closing of a double-wing horizontally rotating steel bridge according to claim 1 is characterized in that: The driving mechanism comprises two groups of driving devices symmetrically arranged along the longitudinal direction of the bridge.

4. The device for emergency opening and closing of a double-wing horizontally rotating steel bridge according to claim 3 is characterized in that: Each set of the driving devices comprises two sets of driving members symmetrically arranged in the transverse direction of the bridge; The driving member includes a wheel axle arranged along the longitudinal direction of the bridge, two sets of driving wheels respectively mounted on the wheel axle, and a hydraulic driving system used in conjunction with the wheel axle; the lifting mechanism is mounted on the outer side of the wheel axle and rotates in conjunction with the wheel axle.

5. The device for emergency opening and closing of a double-wing horizontally rotating steel bridge according to claim 4 is characterized in that: The lifting mechanism includes a hinged plate sleeved outside the wheel axle and coaxially arranged with the wheel axle, a telescopic control component whose telescopic end is hinged to the hinged plate and the other end is hinged to the steering component; the end of the hinged plate away from the telescopic control component is hinged to the steering component.

6. The device for emergency opening and closing of a double-wing horizontally rotating steel bridge according to claim 5 is characterized in that: The steering assembly includes a slewing bearing that rotates with the frame, a connecting arm connected to the bottom of the slewing bearing and hinged to the hinge plate at the other end, and a steering drive system installed on the slewing bearing and used to control the rotation of the slewing bearing; one end of the telescopic control assembly is hinged to the slewing bearing.

7. The device for emergency opening and closing of a double-wing horizontally rotating steel bridge according to claim 6 is characterized in that: The hinge point of the telescopic control assembly and the slewing bearing, the vertical axis of the slewing bearing, and the axis of the wheel axle along the bridge direction are on the same vertical plane; The hinge point between the telescopic control assembly and the hinge plate, the hinge point between the connecting arm and the hinge plate, and the axis of the wheel axle are on the same plane.

8. A device for emergency opening and closing of a double-wing horizontally rotating steel bridge according to any one of claims 1 to 7, characterized in that: A limiting block for limiting the movement of the counterweight block along the transverse bridge direction is arranged on the vehicle frame along the transverse bridge direction.

9. The device for emergency opening and closing of a double-wing horizontally rotating steel bridge according to claim 8 is characterized in that: The connecting mechanism comprises a traction hook installed at the rear of the frame, a hook installed at the bottom of the bridge and used in conjunction with the connecting frame, and a traction rope used to connect the traction hook and the hook.

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